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1 year ago

I don't understand please help me...

Mathematics

1 answer:

Alex1 year ago

8 0

The total fencing material required to fence the playground and both flower beds is

perimeter of a rectangle is 2( / + w)
perimeter of a square is 8a

<h3>How to find the material required for the fencing</h3>

Information from the question

The boundary of a park is shaped like a circle

The length of the rectangular playground is / and its width is w

The length of each side of the square flower beds is a

The problem is asking for the perimeter of a rectangle and 2 squares

perimeter of a rectangle is 2( / + w)

perimeter of a square is 4a

If there was no over lap the expression will have no reduction and hence the quantity of material required for the fencing is equal to their respective perimeters

The flower beds are two so the perimeter will be multiplied by 2 to give 8a

Learn more about perimeter here:

brainly.com/question/29430107

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3 years ago

You are standing 45 meters from the base of the Empire State Building. You estimate that the angle of elevation to the top of th

romanna [79]

Answer:

[45tan(82°)+123] meters

A is correct

Step-by-step explanation:

You are standing 45 meters from the base of the Empire State Building.

You estimate that the angle of elevation to the top of the 86th floor(the observatory) is 82°.

If the total height of the building is another 123 meters above the 86th floor.

OB = 45 m , ∠O= 82°

In Δ OBA, ∠B = 90°

$\tan82^\circ=\dfrac{AB}{OB}$

$\tan82^\circ=\dfrac{AB}{45}$

$AB=45\tan82^\circ$

Top of the building, T at 123 m from A

Total height of building = BA + AT

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8 0

3 years ago

Solve for y.<br><br> 25 = y2<br><br> y = <br> or

masya89 [10]

Answer:

y=5 or y=−5 it does not matter either one

Step-by-step explanation:

25=y2

Step 1: Subtract y^2 from both sides.

25−y2=y2−y2

−y2+25=0

Step 2: Subtract 25 from both sides.

−y2+25−25=0−25

−y2=−25

Step 3: Divide both sides by -1.

−y2

−1

−25

−1

y2=25

Step 4: Take square root.

y=±√25

y=5 or y=−5

8 0

3 years ago

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Suppose Brianna has 1 3/4 quart of red paint. Will she have enough to paint 4 birdhouses red?

Stella [2.4K]

It depends on how much paint she needs to paint 1 birdhouse.

5 0

3 years ago

Can you heeelp??? plz ;_(

pashok25 [27]

Answer:

Step-by-step explanation:

1/2(6x5) = 15

15x4 = 60

5x5= 25

25 + 60 = 85

8 0

3 years ago

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